Bulletin No.:

Service Bulletin

Date:

22-NA-124
October, 2023

TECHNICAL
Subject:

Bolt EUV with Super Cruise Digital Map Control Module - Outdated Map Data

Brand:

Model:

Chevrolet

Bolt EUV

Model Year:

VIN:

from

to

from

to

2022

2023

—

—

Engine:

Transmission:

—

—

Involved Region or Country

United States, Canada

Additional Options (RPOs)

Equipped with Super Cruise (RPO UKL)

Condition

Some customers may comment that Super Cruise is unavailable and there is a "Service
Driver Assist" message displayed on the instrument cluster. Dealer technicians may find
DTC B126B Map Data Programming in the K179 Digital Map Control Module set current
or in recent history with no other related codes.

Cause

Condition may be caused by the Settings —> under Wi-Fi Hotspot —> Share Hotspot
may be selected “off.”

Correction

Discuss with the customer that this feature must be turned on for the vehicle to receive
the automatic map updates enabling Super Cruise to function properly into the future.
Please advise the customer to leave this feature selected “on.”
Dealers will update the map module with a USB update.
1. Document digital map version found in Map Module data display.
2. Drive the vehicle for 5 minutes (do not power cycle ignition after drive).
3. Setup Programming outside of garage.
4. Ensure “Share Hotspot” is off.
5. Run the Map Module – Programming - Refer to K179 Digital Map Control Module:
Programming and Setup. (After programming clear system wide DTCs using GDS.
6. Run the Map Module – USB update - Refer to Digital Map Module Map Update.
7. If successful, confirm map version has changed and skip to step 13.
8. If unsuccessful, clear all codes set during previous programming events.
9. Enable shared Wi-Fi hotspot in the radio settings.
10. Test drive vehicle for 10-minutes. After drive do not turn off vehicle and leave parked
outside for 1 hour.
11. Turn off vehicle after 1 hour and let all modules enter sleep mode, 30 minutes.
12. Review map version and confirm that it has changed and B126B has cleared.
13. Confirm super cruise will engage on super cruise enabled highway.
14. Review https://www.chevrolet.com/super-cruise for Bolt EUV super cruise enabled
roadways*. NOTE bottom left of map, switch must be changed to Bolt EUV’s from all
other models.
– *Canada English URL: www.chevrolet.ca/en/connectivity-and-technology/
supercruise-overview
– *Canada French URL: www.chevrolet.ca/fr/connectivity-and-technology/
supercruise-overview
15. Upon successful completion of all repairs, confirm “Share Hotspot” left on.

Copyright 2023 General Motors LLC. All Rights Reserved.

Page 2

October, 2023

Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
Caution: Before downloading the update files, be sure
the computer is connected to the internet through a
network cable (hardwired). DO NOT DOWNLOAD or
install the files wirelessly. If there is an interruption
during programming, programming failure or control
module damage may occur.
• Ensure the programming tool is equipped with the
latest software and is securely connected to the
data link connector. If there is an interruption
during programming, programming failure or
control module damage may occur.
• Stable battery voltage is critical during
programming. Any fluctuation, spiking, over
voltage or loss of voltage will interrupt
programming. Install a GM Authorized
Programming Support Tool to maintain system
voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12V jumper or booster pack disconnected
from the AC voltage supply. DO NOT connect a
battery charger.
• Follow the on-screen prompts regarding ignition
power mode, but ensure that anything that drains
excessive power (exterior lights, HVAC blower
motor, etc) is off.
• Please verify that the radio time and date are set
correctly before inserting USB drive into vehicle
for programming, otherwise an error will result.
• Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.

Bulletin No.: 22-NA-124

Important: The service technician always needs to
verify that the VIN displayed in the TLC left side drop
down menu and the top center window match the VIN
plate of the vehicle to be programmed prior to using
Service Programming System 2 (SPS2) for
programming or reprogramming a module.
• For the TLC application, service technicians need
to always ensure that the power mode (ignition) is
“ON” before reading the VIN from the vehicle’s
VIN master module and that they do not select a
VIN that is already in the TLC application memory
from a previous vehicle.
• If the VIN that shows up in the TLC top center
window after correctly reading the VIN from the
vehicle does not match the VIN plate of the
vehicle, manually type in the VIN characters from
the vehicle VIN plate into the TLC top center
window and use these for programming or
reprogramming the subject module with the
correct vehicle VIN and software and/or
calibrations.
• The Engine Control Module (ECM) is the master
module (for VIP vehicles) that TLC reads to
determine the VIN of the vehicle. If the VIN read
from the vehicle by TLC does not match the VIN
plate of the vehicle, the ECM also needs to be
reprogrammed with the correct VIN, software and
calibrations that match the vehicle’s VIN plate.
• The Body Control Module (BCM) is the master
module (for GEM vehicles) that TLC reads to
determine the VIN of the vehicle. If the VIN read
from the vehicle by TLC does not match the VIN
plate of the vehicle, the BCM also needs to be
reprogrammed with the correct VIN, software and
calibrations that match the vehicle’s VIN plate.

Bulletin No.: 22-NA-124

October, 2023

Page 3

Caution: Be sure the VIN selected in the drop down
menu (1) is the same as the vehicle connected (2)
before beginning programming.

5743643

Important: If the vehicle VIN DOES NOT match, the
message below will be shown.

5877000

Page 4

October, 2023

Bulletin No.: 22-NA-124

5644477

Important: Techline Connect screen shown above.
Important: If the same calibration/software warning is
noted on the TLC or SPS Summary screen, select OK
and follow screen instructions. After a successful
programming event, the WCC is located in the Service
Programming System dialogue box of the SPS
Summary screen. Document the WCC on the job card.
No further action is required. Refer to the Warranty
Information section of this bulletin.
1. Reprogram the Digital Map Control Module. Refer
to K179 Digital Map Control Module: Programming
and Setup in SI.

Bulletin No.: 22-NA-124

October, 2023

Page 5

5644478

Note: The screenshot above is an example of module
programming and may not be indicative of the specific
module that is being programmed. Module selection
and VIN information have been blacked out.
Important: To avoid warranty transaction rejections,
you MUST record the warranty claim code provided on
the Warranty Claim Code (WCC) screen shown above
on the job card. Refer to callout 1 above for the location
of the WCC on the screen.
2. Record the Warranty Claim Code on the job card
for warranty transaction submission.

Page 6

October, 2023

Bulletin No.: 22-NA-124

Warranty Information
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information:
Labor Operation

Description

Labor Time

2888758*

K179 Digital Map Control Module Programming with SPS and
Digital Map Update for Second Condition

1.3 hrs

*This is a unique Labor Operation for bulletin use only.
Important: To avoid warranty transaction rejections, carefully read and follow the instructions below:

6125814

•
•

The Warranty Claim Code must be accurately entered in the “Warranty Claim Code” field of the transaction.
When more than one Warranty Claim Code is generated for a programming event, it is required to document all Warranty
Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the “Warranty Claim Code”
field of the transaction, otherwise the transaction will reject. It is best practice to enter the FINAL code provided by SPS2.

Bulletin No.: 22-NA-124

October, 2023

Page 7

Warranty Claim Code Information Retrieval

6125774

If the Warranty Claim Code was not recorded on the
Job Card, the code can be retrieved in the SPS2
system as follows:
1. Open TLC on the computer used to program the
vehicle.
2. Select and start SPS2.
3. Select Settings (1).
4. Select the Warranty Claim Code tab (2).
The VIN, Warranty Claim Code and Date/Time will be
listed on a roster of recent programming events. If the
code is retrievable, dealers should resubmit the
transaction making sure to include the code in the SPS
Warranty Claim Code field.
Version

3

Modified

Released June 20, 2022
Revised February 24, 2023 – Added information to steps 1 and 4, added a step 7 and
added a screenshot under Warranty Information and Warranty Claim Code Information
Retrieval.
Revised October 10, 2023 – Added the 2023 Model Year and updated the Condition,
Cause, and Correction sections.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.

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